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RadEnBest ResponseYou've already chosen the best response.0
what's interval for x ?
 10 months ago

jadekellllyBest ResponseYou've already chosen the best response.0
i have no clue, im doing the work sheet and that is all it says for this question
 10 months ago

jadekellllyBest ResponseYou've already chosen the best response.0
it says solve for x
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
remember complimentary angles
 10 months ago

jadekellllyBest ResponseYou've already chosen the best response.0
the answer choices are 20, 11, 10.75, or 11.75
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
forget your answers, understand concept
 10 months ago

RadEnBest ResponseYou've already chosen the best response.0
if just in the 1st quadrant. u can use the identity : cosx = sin(90x) cos(2x4)=sin(6x) sin(90(2x4))=sin(6x) 90(2x4) = 6x solve for x the result would be same like @dan817 said :)
 10 months ago

RadEnBest ResponseYou've already chosen the best response.0
oppss 815 not 817, hihi :)
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
do u see how complimentary angles work now
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
in a right angled triangle the 2 other angles must add up to 90
 10 months ago

jadekellllyBest ResponseYou've already chosen the best response.0
Im really slow at picking up these concepts.....:/ so this im reallly lost..
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
hmm how else can i explain it
 10 months ago

jadekellllyBest ResponseYou've already chosen the best response.0
btw i really appriciate the help you guysss!!
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
no lets do it between 4 to pi+4 for 1 interval of your cos(2x4)
 10 months ago

RadEnBest ResponseYou've already chosen the best response.0
hmmm.. for easier, solve this algebrically :) can u solve for x, this part : dw:1371574314002:dw
 10 months ago

dan815Best ResponseYou've already chosen the best response.0
first solve an x that works and ill show u how u can find all the other xs that work
 10 months ago

schadieBest ResponseYou've already chosen the best response.0
dw:1371574763654:dw
 10 months ago

VitasBest ResponseYou've already chosen the best response.0
cos(2x4)=cos(906x) a)2x4=906x+360k b)2x4=6x90+360k a)x=94/8+45k b)x=86/4+90k
 10 months ago
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